Is this a case of user error, of the default parameters not matching my reality, bad documentation, or actual errors in the code? (If it's a bug, I'll file one, but won't be able to do other research for 3-4 weeks.)

I'd like to get to the bottom of this sometime... for the moment we'll capture using BMD's Media Express program; we have enough disk space for the uncompressed video. Would still like to get this into my Caspar server control system.